Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
In Alton, the peak average temperatures are observed in July, with a high of 81.7°F (27.6°C) and a low of 63.3°F (17.4°C).Heat index
In July, the heat index is computed to be a hot 87.8°F (31°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
In Alton, the average relative humidity in July is 78%.Rainfall
In Alton, Iowa, during July, the rain falls for 12.8 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Alton, during the entire year, the rain falls for 124 days and collects up to 24.09" (612mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in July is 14h and 59min.On the first day of July, sunrise is at 5:49 am and sunset at 9:06 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:46 pm CDT.
Sunshine
July has the most sunshine of the year in Alton, with an average of 10.4h of sunshine.UV index
The months with the highest UV index in Alton are June and July, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In July, the maximum UV index of 6 translates into these guidelines:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What month is the hottest in Alton?
What are the temperatures in Alton in July?
What is the average humidity in July in Alton?
How many days does it rain in July in Alton?
When it does not snow in Alton?
What is the average length of the day in July in Alton?
When is the sunrise / sunset in July in Alton?
What month has the most sunshine in Alton?
How many hours of sunshine does Alton have in July?
What are the months with the highest UV index in Alton?
How high is the UV index in July in Alton?
Average temperature in July
Alton, IA
- Average high temperature in July: 81.7°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (24.6°F).
- Average low temperature in July: 63.3°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in July
Alton, IA
- Average pressure in July: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in July
Alton, IA
- Average wind speed in July: 7.8mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in July
Alton, IA
- Average humidity in July: 78%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (67%).
Average rainfall in July
Alton, IA
- Average rainfall in July: 1.93"
The wettest month (with the highest rainfall) is June (3.82").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in July
Alton, IA
- Average rainfall days in July: 12.8 days
The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in July
Alton, IA
- Average snowfall in July: 0"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Alton, IA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Alton, IA
- Average daylight in July: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in July: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in July
Alton, IA
- Average sunshine days in July: 15.1 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in July
Alton, IA
- Average UV index in July: 6
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
Alton, IA
- Average cloud cover in July: 28
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in July
Alton, IA
- Average visibility in July: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Alton, Iowa, USA
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